package com.atguigu.gulimall.order.web;

import com.atguigu.common.exception.NoStockException;
import com.atguigu.gulimall.order.service.OrderService;
import com.atguigu.gulimall.order.vo.OrderConfirmVo;
import com.atguigu.gulimall.order.vo.OrderSubmitVo;
import com.atguigu.gulimall.order.vo.SubmitOrderResponseVo;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ExecutionException;

/**
 * @author lk
 * @version 1.0.0
 * @Description OrderWebController
 * @createTime 2024/3/1 14:22
 */
@Slf4j
@Controller
public class OrderWebController {


    @Autowired
    private OrderService orderService;
    /**
     * 去结算确认页
     * @return
     */
    @GetMapping(value = "/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("confirmOrderData",confirmVo);
        return "confirm";
    }

    /**
     * 下订单功能
     * @param vo
     * @return
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes attributes){
        Map<String, String> message = new HashMap<>();
        try {
            SubmitOrderResponseVo responseVo = orderService.submitOrder(vo);
            //下单成功来到支付选择页
            //下单失败回到订单确认页重新确定订单信息
            if(responseVo.getCode() ==0){
                //下单成功，跳转支付页面
                model.addAttribute("submitOrderResp",responseVo);
                return "pay";
            } else{
                String msg = "下单失败";
                switch (responseVo.getCode()) {
                    case 1: msg += "令牌订单信息过期，请刷新再次提交"; break;
                    case 2: msg += "订单商品价格发生变化，请确认后再次提交"; break;
                    case 3: msg += "库存锁定失败，商品库存不足"; break;
                }
                message.put("msg",msg);
                attributes.addFlashAttribute("message",message);
                //下单失败，回到提交订单页
                return "redirect:http://order.gulimall.com/toTrade";
            }
        } catch (Exception e) {
            if (e instanceof NoStockException) {
                String msg = ((NoStockException)e).getMessage();
                log.info("message:"+msg);
                //session里面并没有msg
                message.put("msg",msg);
                attributes.addFlashAttribute("message",message);
            }
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
